Oscillations in a copper Mössbauer source in low temperature helium after heating by an R-F Pulse

Autor:	W. Koch, Gilbert J. Perlow, W. Potzel
Rok vydání:	1987
Předmět:	Nuclear and High Energy Physics Doping chemistry.chemical_element Radiation Condensed Matter Physics Copper Atomic and Molecular Physics and Optics Pulse (physics) chemistry Heat transfer Mössbauer spectroscopy Physical and Theoretical Chemistry Atomic physics Current (fluid) Helium
Zdroj:	Hyperfine Interactions. 33:293-313
ISSN:	1572-9540 0304-3843
DOI:	10.1007/bf02394117
Popis:	Mossbauer radiation from a copper foil doped with57Co is resonantly absorbed in a stationary Be∶57Fe absorber. Experiments were performed with the source immersed in liquid He at 4.2K, He gas from 4.2 to 78 K, and in liquid HeII to 2 K. Radio-frequency current pulses through the source cause large increases in transmission, mainly after the end of the pulse. These increases are associated with heat transfer instabilities (Taconis oscillations) at the He-metal interface.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::28560fa155f33105c7aee94330976aab https://doi.org/10.1007/bf02394117 Zobrazit plný text záznamu Full text from SpringerLink